Rail joint



April 19, 1932. P. ziENTEK 1,854,361

RAIL JOINT Filed Sept. 25, 1930 3 Sheets-Sheet 1 16 :I 20-A Q Q April 19, 1932. P. ZIENTEK 1,854,361

RAIL JOINT Filed Sept. 25. 1930 3 Sheets-Sheet 2 April 19, 1932. P. zlENTEK 1,854,361

' RAIL JOINT Filed Sept. 25, 1950 3 Sheets-Shaml 3 Patented Apr. 19, 1932 savent orticav PAUL MENTRE OF Sewer-ree @Usmate RAIL Joinvr Application tiled September 25, 193:0, Serial No. 484,391, and in linstria september 1,3,

This invention relates to a oining for rails of the type'lin which ridges attached to the tiret-plates connect the rail heads at the j oint.y :itherto the outer ridges were longer than the inner ones but, in accordance with the present invention the outer ridge is` rail but is kept narrower, whereby the strength of the-joint is likewise increased. The inner ridge is gradedvor bevelled olii, so

that sucie'nt supporting 'surface is provided for the'wheel on passing the joint. In order to render the joint according to the Yinvention suitable'also for the sleeve type oit ishplateswhich embrace the rails r'these lishplates are so divided that the ridges are pro-V vided on separate tlat bars 'connected to the tish`-plate7 so that the iish-plates are capable of being manufactured by rolling.

Several forms of construction of the invention are shown, by way ot example, in the accompanying drawings, in which Fig. 1 is a view of a rail-point in accordance with the invention, with L-shaped fishplates.

Fig. 1a is a detail section showing a slight modication.

Fig. 2 is a section of the same taken on the line A-B of Fig. 1.

Fig'. 3 is a side'elevation looking from the outside of the rail in direction of the arrows in Figs. 1 and 2.

Fig. 4 shows the coniiguration of the ridge in the case of joints on a curve.

Fig. 5 shows a modiiied form of ridge.

Fig; .6 shows a modification Vof the iishplates.

Fig. 7 shows the construction of the base plate for two' sleepers.

Fig. 8 is a section on the line Cv-D of Fig. 9 of a rail joint construction in accordance with the invention with profile-section iish-plates.

Fig. 9 is a plan of the joint shown in .Fgg. v

Figs. 10 and 11 show in section two moditied forms of thesefi'sh-plates.

The rail-ends 1 are connected together by means of an' outer E shapediishsplatev 2 'and a similarly L-shaped inner lish-plate 3 the inner surfaces of which are appliedito the side surfaces not the 'raill'websf' The outer iishlplate 2 is provided with a gib Vor strip 5 the upper edge of which is `usli"i 7viththel running surface of the rail and which lies against the heads? of' the rails,`a'nd this fish'-A plate is connected to the inner 'ishplatesby means of bolts 6. Yfitithejoint between the rails the lish-plates are 'provided with ridges extending betweenY the heads'A of therails, but the ridge 8 ofV theo'uter iishplate is shorter, measured in thedirection of theaxis oi the rail',` than the ridge 9 of thejinner fish-plate, so "that at the point at whichthe ridge of the inner fish-plate' terminates the outer portion of the rail-head itself takes up the'lateral thrust of the wheels. On' the'other hand the ridge 8 doesl not extend tothe web of the rail, sothataportion o'f'the head runs through to the end of the rail. The ridge' 9 of the inner fish-plate which projects 'be'- tween the head's'of the'rails is oftset at'lO at right angles to the axis of the'rail for the full cross-section 'of the head of the rail', which serves the purpose of giving the wheel sufficient bearing surfaceduring the trav; ersing of the .gaps between fthe-'ridge and' the head of the rails. The distance between the steps 10 is made greater than the lengthof the; outer ridge 8, so that in the region ofthe steps 1 0 also the outer portion of the head of therail is able to bear a 'share of the :lateral wheel-thrust. i i "Y l The horizontal portions of the fish-plates are provided with"l-oi'igitudinal lhol'es" 11 through which the bolts 12 arepaSSed for the attachment of the fish-plates to the baseplate 13 in .whichA recesses 14' are providedto receive the heads 15 of the bolts 12.KV The employment of nuts and bolts is preferable to that of cap screws', since theformen'are not subjected to'shearing'straii'i. 'Thesa'm'e purp-ose'c'an be achieved 7b'ythe insertion of the heads of the boltsin reversed T-s'haped grooves 14, as shown in Fi'gureil. A

Instead of the known type of set-screws for the fish-plates against lateral displacement there may be employed clamping plates 16 with an oblique outer surface 18 adapted to be supported against a similarly oblique projection 17 on the base-plate, while the other clamping surface 19 of the clamping plates presses against the fish-plate. The bolts 2O enable the required pressure to be exercised on the clamping plate, and can at the same time serve for the attachment of the base-plate to the sleeper '21.

in the case of oints on a curve of the line the ridge 8 on the outer rail is omitted, while the inner ridge 9 can remain unaltered (F ig. 4i). instead of omitting the ridge 8 the outer gib 5 can be dispensed with in joints on a curve.

The corners 22 and 23 of the ridge 9 and the corners 2li of the ridge 8 as also the corresponding corners of the material of the rails are preferably bevelled off, as shown in Fig. 5. Instead of the ridge 8 and the gib 5 being formed in one with the outer fish-plate 2 this gib and the adjoining portion of the fish-plate for the breadth of the ridge 8 can be made in a separate piece 25, as shown in Fig. 6; this piece 25 is likewise pressed against the rail by means of the bolts 6.

Any other kind of base-plate may be employed instead of that shown in Figs. 1-3 of the drawings. For the purpose of in creasing the supporting effect of the baseplatc the latter is provided with projectionsl 26 disposed in the direction of the length of the rails. These projections are adapted to lie against the foot of the rail and are stiff ened against the sleeper by means of ribs 27,

if, instead of a broad sleeper, two nar-- rower sleepers 28 are employed, one under each rail-end, the base-plate acquires the forni shown in Fig. 7. ln this case also the projections 26 with the ribs 27 are provided, but can be omitted if desired.

Fish-plates of a cross-section adapted to fit round the lower portion of the rail (sleeve fish-plates) may be employed in place of the L-shaped fish-plates, but ish plates of this type, when provided with ridges in accordance with the present invention, would not be capable of being rolled. lf the invention is to be used in connection with this type of fish-plate, and the latter at the same time to be capable of being rolled, the fish-plates must be divided as shown, in connection with a few examples, in Figs. 8-11.

As shown in Fig. 8 the fish-plate 30 consists of one piece the cross-section of which is adapted to the configuration of the profile of the lower portion of the rail and which extends up to the heads of the rails, whereby, however, the portion of the fish-plates in Contact with the web of the rails is reduced to approximately half the thickness of the remaining portions. The lateral 'portions of the tish-plate are completed by flat bars of which the inner, 31, carries the ridge 9, and the outer, 32, the ridge 8 and the gib 5. A shoulder l0 serves for the guidance and support of the bar 32. To ensure the correct position of the fish-plates on the baseplate it is sufficient to provide the clamping plates 33 which are tightened by means of the bolts 34. rlfhese clamping plates are strained between the outer edge of the fishplates on the one hand and a ridge 35 on the base-plate 13 on the other hand. nstead of the cap screws shown in the drawing nutted bolts with their heads countersunk in the base-plate may be employed. The base-plate is secured to the sleep-er 21 by means of the bolts 36. rEhe bolts 36 may also be arranged between the clamping plates.

In the modification shown in Fig. 1() the chair-plate consists of two portions 37 and 38 which interlock beneath the foot of the rails by means of an S-shaped wedge il and of a similarly shaped groove, so that they are locked against mutual displacement. locking can also be effected, as shown in Fig. 1l, by the division of the horizont-al portion of the chair-plate in the middle and the provision of the same with projecting ridges 39 adapted to iit into corresponding recesses in the base-plate 13. rEhe rail joint is then completed by means of the flat bars 31 and 32, as shown in Fig. 8.

In all these forms of construction the basic principle of the invention is retained, that is to say the outer ridge 8 is kept shorter than the inner ridge 9. rlhe latter, however, is provided, instead of a step 10, with an inclined surface 22, approximately as shown in Fig. 5.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is

1. A rail joint comprising a base-plate being secured to the sleeper, clamping plates adapted to be secured to the base-plate, fishplates being strained bctween the clamping plates and the rails, ridges connected to the fish-plates and projecting between the heads of the rails at the points of their abutment, the inner ridge being longer as measured in the direction of the axis of the rail than the outer ridge, the length of the outer portion of the inner ridge being greater than the length of its inner portion.

2. A rail joint comprising a baseplate bcing secured to the sleeper, clamping plates adapted to be secured to the base-plate, lishplates being strained between the clamping plates and the rails, ridges connected to the fish-plates and projecting between the heads of the rails at the points of their abutment, the length of the outer portion of the inner ridge being greater than the length of its inner portion, and the length of this inner The . of the rails at the points of their abutment,

' the length of the outer portion of the inner the inner ridge being longer as measured in ridge being greater than the length ot its inner portion, and the length of this inner portion being greater than the length of the outer ridge, all as measured in the direction of the axis of the rail, and the outer ridge not extending to the web of the rail.

4. A rail joint comprising a base-plate being secured to the sleeper, clamping plates ,e ada ted to be secured to the base-plate` ishplates being strained between the clamping plates and the rails, ridges connected to the iish-plates and projecting between the heads of the rails at the points of their abutment7 the direction of the axis of the rail than the outer ridge, the inner ridge being set oii in a right angle to the direction of the axis of the rail so as to form an outer and an inner portion in the inner ridge, the length of the outer portion of the inner ridge being greater than the length of its inner portion, ane the length or" this inner portion being greater than the length of the outer ridge,

n all as measured in the direction of the axis i adapted t0 be secured to the base-plate, l.-

shaped fish-plates heldibetween the clamping plates and the rails and secured to the baseplate by means of nutted bolts the heads of which are countersunk in recesses on the .'f underside of the base-plate, ridges connected to the fish-plates and projecting between the heads of the rails at the points of their abutment, the inner ridge being longer as measured in the direction of the axis of the rail than the outer ridge, the inner ridge being set oil in a right angle to the direction of the axis of the rail so as to form an outer and an inner portion in the inner ridge, the length of the outer portion of the inner ridge being greater than the length of its inner portion, and the length of this inner portion being greater than the length of the outer ridge, all as measured in the direction of the axis ot the rail, and the outer ridge not extending to the web of the rail.

6. A rail joint comprising a base-plate being secured to the sleeper, clamping plates adapted to be secured to the base-plate and provided with wedge surfaces adapted to be applied to corresponding surfaces on projections on the base-plate, L-shaped `iish:plates held between the clamping plates and the rails and secured to the base-plate by means .olf nutted bolts the heads of which are countersunk in recesses on the underside of the besef plate, ridges connected to the fish-plates and projecting between the heads of the rails at the points of their abutment, the inner ridge being longer as measured in the direction .of the axis of the rail than the outer ridge, the inner ridge being set ofi' in a right angle to the direction of the axis of the rail so as to form an outer and an inner portion in the inner ridge, the length Yof the outer portion of the inner ridge being greater than the lengthofr its inner portion, and the length or" this inner portion being greater than the length of the outer ridge, all as measured in the direction r01E the axis ot the rail, and the outer ridge not extending to the web of the rail.

7. A rail joint comprising la base-plate secured to the sleeper,clamping plates adapted to be secured to the rbase, plate, chair-plates held between the clamping plates and .the rails, ridges connected to the chair-plates and projecting between the heads of the rails at the points of their abutment, the inner ridge being longer as measured Ain the direction of the axis of the rail than the outer ridge, the corners vof the inner ridge projecting into the head of the rail being bevelled ott so as to Jform an .outer and an inner portion in the inner ridge, the length of the outer portion of the inner ridge being greater than the length of its inner portion, and the length of this inner portion being greater than the length of the outer ridge, all as measured in the direction of the axis of the rail, and the outer ridge not extending to the web of the rail.

' 8. A rail joint comprising a base-plate secured to the sleeper, clamping plates adapted to be secured to the base-plate, chair-plates held between the clamping plates and the rails, ridges connected to the fish-plates and projecting between the heads of the rails at the points of their abutment, the inner ridge being longer as measured in the direction of the axis of the rail than the outer ridge, the inner ridge being set off in a right angle to the direction of the axis of the rail so as to forman outer and an inner portion in the inner ridge, the length of the outer portion of the inner ridge being greater than th-e length of its inner portion, and the length of this inner portion being great-er than the length of the outer ridge, all as measured in the direction of the axis of the rail, and the Vouter ridge not extending to the rib of the rail, the corners of the outer and the inner portion of the inner ridge and the corners of the outer ridge which project into the head of the rail being bevelled oit. l

9. A rail joint comprising a base-plate se'- cured to the sleeper, clamping plates adapted Sii to be secured to the base plate, L-shaped fishplates held between the clamping plates and the rails and secured to the base-plate by means of nutted bolts the heads of Which are l countersunk in reversed 'T-shaped grooves in the base-plate running in the direction of the length of the rail, ridges connected to the fish plates and projecting between the heads of the rails at the points of their abutment, the inner ridge being longer as measured in the direction of the axis of the rail than the outer ridge, the inner ridge being set off in a right angle to the direction of the axis of the rail so as to form an outer and an inner portion in the inner ridge, the length of the outer portion of the inner ridge being greater than the length oi' its inner portion, and the length of this inner portion being greater than the length of the outer ridge, all as measured in the direction of the axis of the rail, and the outer ridge not extending to the Web of the rail.

l0. A rail joint comprising a base-plate secured to the sleeper and carrying projections stiiened by means of ribs which support the foot of the rail beyond the base-jolate, clamping plates adapted to be secured to the baseplate, fish-plates held between the clamping plates and the rails, ridges connected to the fish-plates and projecting between the heads of the rails at the points of their abutment, the inner ridge being longer as measured in the direction of the axis of the rail than the outer ridge.

In testimony whereof I ailix my signature.

PAUL ZIENTEK. 

